"But there were also some elements to the independence campaign that did get nasty and divisive"
Within any movement, there's going to be some rotten eggs, unfortunately. And this is a broad movement. Anyone who supports an independent Scotland, and it's pretty broad on the political spectrum. Putting the SNP aside, which is itself a broad coalition, around a third of labour and a third reform supporters in Scotland, also support independence. And about 10% of Lib Dems and Tories do.
So while I do think it has a slight left of center epicenter, there's lots on either side.
It's also fair to expect things to get said in the heat of the moment, and get carried away. There was a lot of it on both sides. I have been told by an English man (on Quora) he hopes we get independence because he's dying to go to war with us. But I don't for a moment believe he speaks for the majority of unionists.
"Sturgeon at times pushed for self-serving reasons"
Perhaps, but the same can be said for the other side, right? Obviously they see it as a loss for them if Scotland goes. A loss to their territory, a loss on the world stage, a loss to park their nukes, etc. Politicians in England aren't just against independence because they adore us too much. I also believe most politicians are in politicians for self-serving reasons. There's so much money to be made in politics, both during your career, and after you've left it. Blair's raking in millions, giving speeches, and he's been out of power for decades.
"Edward I"
Fair point, but again, I think that's just how these exchanges escalate. I don't think any pro-independence supporter starts from there. But during discussions, history inevitably comes up, and the wars of independence in a whataboutism way between both sides. At some point we get to the Romans and Picts and it goes way off track. I want independence for current political reasons,and democratic reasons, not historical grievances.